dye|World dye variety

Name:C.I.Direct Blue 69,C.I.34210

Molecular Structure: trisazo class

C.I.Direct Blue 69,C.I.34210,CAS 6548-32-9,1105.97,C46H27N7Na4O13S4,Sirius Light Blue BR

Molecular Formula:C₄₆H₂₇N₇Na₄O₁₃S₄

Molecular Weight: 1105.97

CAS Registry Number:6548-32-9

Manufacturing Methods : 3-Aminonaphthalene-1,5-disulfonic acid diazo, and Naphthalen-1-amine coupling, its product to diazo, and 8-Aminonaphthalene-2-sulfonic acid coupling, again diazo, in alkaline conditions and 4-Hydroxy-7-(phenylamino)naphthalene-2-sulfonic acid coupling.

Properties and Applications: red light navy blue. Soluble in water for blue, slightly soluble in ethanol for Light gray Light purple, insoluble in other organic solvents. The strong sulfuric acid for gray Light black, diluted for purple. The dye solution to join strong hydrochloric acid have precipitation of dark; Sodium hydroxide solution to join a purple precipitation.

List of Suppliers:

Sirius Light Blue BR( Bayer Group )